package tech.aistar.corejava.day07.extend;

/**
 * @author success
 * @version 1.0
 * @description:本类用来演示:图形父类
 * @date 2019/7/23 0023
 */
public class Shape {

    public double girth(){
        return 0.0;
    }

    public double area(){
        return 0.0;
    }

}
